Author Question: In order for a circuit to respond quickly, its time constant should be short. In a circuit involving ... (Read 60 times)

mp14 · **on:** Jul 28, 2018

In order for a circuit to respond quickly, its time constant should be short. In a circuit involving resistance and capacitance, which of the following choices would result in the shortest time constant?
a. R = 75 W, C = 75 mF
c. R = 300 W, C = 75 mF
b. R = 200 W, C = 200 mF
d. R = 100 W, C = 30 mF

Question 2

A solid object is made of two materials, one material having density of 2000 kg/m3 and the other having density of 8000 kg/m3 . If the object contains equal volumes of the materials, what is its average density?
a. 3000 kg/m3
c. 5000 kg/m3
b. 3200 kg/m3
d. more information is needed